This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 15 Biodiversity And Conservation – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why is the Svalbard Seed Bank important? A) Preserving plant seeds for future generations. B) Storing ancient artifacts. C) Protecting endangered animal species. D) Creating new hybrid plant species. Show Answer Correct Answer: A) Preserving plant seeds for future generations. 2. Why is biodiversity important? A) It supports ecosystem services and cultural values. B) Only for aesthetic purposes. C) It is not important. D) Only for economic growth. Show Answer Correct Answer: A) It supports ecosystem services and cultural values. 3. Which process describes the gradual increase in concentration of harmful substances in organisms at higher trophic levels? A) Biological Magnification. B) Eutrophication. C) Endemism. D) Background Extinction. Show Answer Correct Answer: A) Biological Magnification. 4. The variety of different types of genes in a species or population A) Speciation. B) Genetic variation. C) Artificial selection. D) Evolution. Show Answer Correct Answer: B) Genetic variation. 5. This occurs on land that has underwent some damage, like a forest fire. A) Primary succession. B) Secondary succession. C) Habitat fragmentation. D) Poaching. Show Answer Correct Answer: B) Secondary succession. 6. The separation of an ecosystem into small pieces of land is called: A) Edge effect. B) Edge fragmentation. C) Habitat effect. D) Habitat fragmentation. Show Answer Correct Answer: D) Habitat fragmentation. 7. At serious risk of extinction A) Endangered. B) Threatened. C) All the above. D) None of the above. Show Answer Correct Answer: A) Endangered. 8. What percentage of the total oxygen in the earth's atmosphere is estimated to be produced by the dwindling Amazon forest through photosynthesis? A) 20 percent. B) 5 percent. C) 50 percent. D) 35 percent. Show Answer Correct Answer: A) 20 percent. 9. When NO members of a species are left, this is an example of ..... A) Endangered. B) Extinction. C) Protected. D) Threatened. Show Answer Correct Answer: B) Extinction. 10. Which is NOT one of the three main goals of Species Survival Plans? A) Manage species. B) Protect species. C) Reintroduce species. D) Clone species. Show Answer Correct Answer: D) Clone species. 11. According to Robert May, the global species diversity is about A) 50 million. B) 7 million. C) 1.5 million. D) 20 million. Show Answer Correct Answer: B) 7 million. 12. The impacts of loss of biodiversity include-A. Decrease in plant production.B. Lowered resistance to environmental perturbationC. Increased variability in ecosystem processes like water use, pest / disease cycle, plants productivity.D. None A) A, B. B) A, B, C. C) B, C. D) D. Show Answer Correct Answer: B) A, B, C. 13. Ideally, sustainable development should A) Put the protection of the environment ahead of human needs. B) Provide for human needs at the expense of the environment. C) Use more natural resources to make goods to meet human needs. D) Preserve ecosystems while providing for human needs. Show Answer Correct Answer: D) Preserve ecosystems while providing for human needs. 14. Protecting and preserving natural resources and the environment A) Conservation. B) Native. C) Endemic. D) Resilience. Show Answer Correct Answer: A) Conservation. 15. What is the main threat to biodiversity? A) Extinction. B) Pollution. C) Climate change. D) Deforestation. Show Answer Correct Answer: A) Extinction. 16. How can reforestation benefit ecosystems? A) By increasing the number of invasive species. B) By reducing biodiversity. C) By restoring habitats and increasing carbon sequestration. D) By causing soil erosion. Show Answer Correct Answer: C) By restoring habitats and increasing carbon sequestration. 17. Most species-rich taxonomic group among animals comprises A) More than 80% of total diversity. B) No more than 50% of total diversity. C) More than 70% of total diversity. D) No more than 60% of total diversity. Show Answer Correct Answer: C) More than 70% of total diversity. 18. What is by-catch? A) The intentional capture of target fish species. B) The unintentional capture of non-target species during fishing. C) The process of replanting trees in a deforested area. D) The extinction of a species due to overfishing. Show Answer Correct Answer: B) The unintentional capture of non-target species during fishing. 19. Evidence that supports the theory of continental drift has been provided by A) Changes in the rotation of Earth. B) Similar fossils found in South America and Africa. C) The presence of mineral deposits in Southern Africa. D) The direction of flow of the ocean currents. Show Answer Correct Answer: B) Similar fossils found in South America and Africa. 20. In which location would you expect to find the greatest species diversity? A) Maine. B) Minnesota. C) Iowa. D) Jamaica. Show Answer Correct Answer: D) Jamaica. 21. Fill in the blank:The Amazon rain forest is so huge that it is called the ' ..... of the planet'. A) Lungs. B) Heart. C) Engine. D) Roof. Show Answer Correct Answer: A) Lungs. 22. This type of diversity refers to all the different genes contained within all members of a population. A) Ecosystem Diversity. B) Species Diversity. C) Genetic Diversity. D) Community Diversity. Show Answer Correct Answer: C) Genetic Diversity. 23. What is it called when organisms that are better adapted to their environment survive and reproduce more offspring? A) Unnatural selection. B) Artificial selection. C) Natural selection. D) Random selection. Show Answer Correct Answer: C) Natural selection. 24. ILLEGAL killing of animals, usually for one or two parts of its body A) Poaching. B) Hunting. C) Overharvest. D) Invasive species. Show Answer Correct Answer: A) Poaching. 25. Which region in India has a greater amphibian species diversity? A) Western Ghats. B) Eastern Ghats. C) Himalayan ranges. D) Scandinavian countries. Show Answer Correct Answer: A) Western Ghats. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 15 Biodiversity And Conservation Quiz 1Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 2Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 3Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 4Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 5Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 6Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 7Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 8Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 9Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books